Can I get a frame in a different color or with no paint at all?

No. However, getting a frame painted (or, rather, powder coated) locally after you've purchased it is a route you can take to color choice Nirvana. We sell decal kits for all of our models and they go right over top of the paint when you're done. It will look spectacular. Buy them first and send them with your frame if you're going to have a paint shop clear coat over the decals.